Thefoo

Hello, looking for some advice on an indexing issue. I've recently had a website made by a web designer. After waiting a few days I started investigating reasons by site was not showing in google searches. I'm a complete novice in this area but from what I can gather after a bit of snooping around is that the designer put the individual URL's of each page on my site in the "sitemap" section instead uploading the one made by SS. I deleted these and uploaded the correct site map, all pages were discovered immediately. So far, so good. I then requested all pages to be crawled which resulted in all but one page being indexed. I've investigated further with the URL inspection tool on google search console and it seems as though the robot.txt file is blocking some resources. There are some javascript console messages there too. I'm pretty well stuck at this point so hoping someone could shed some light? some pics attached